7 ENGLISH
Position of
speed
change lever
Speed Torque Applicable
operation
1 Low High Heavy load-
ing operation
2 High Low Light loading
operation
Tochangethespeed,switchoffthetoolrst.Select
the "2" side for high speed or "1" for low speed but high
torque. Be sure that the speed change lever is set to the
correct position before operation.
If the tool speed is coming down extremely during the
operation with "2", slide the lever to the "1" and restart
the operation.
Adjusting the fastening torque
1
2
3
►1.Adjustingring2. Graduation 3. Arrow
Thefasteningtorquecanbeadjustedin21stepsbyturningtheadjustingring.Alignthegraduationswiththearrow
on the tool body. You can get the minimum fastening torque at 1 and maximum torque at
marking.
The clutch will slip at various torque levels when set at the number 1 to 20. The clutch does not work at
the marking.
Before actual operation, drive a trial screw into your material or a piece of duplicate material to determine which
torque level is required for a particular application.
The following shows the rough guide of the relationship between the screw size and graduation.
Graduation 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Machine screw M4 M5 M6
Wood
screw
Soft wood
(e.g. pine)
– ɸ3.5 x 22 ɸ4.1x 38 –
Hard wood
(e.g. lauan)
– ɸ3.5 x 22 ɸ4.1x 38 –
ASSEMBLY
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
Installing or removing driver bit/
drill bit
For Model DF332D (optional accessory)
3
2
1
►1. Sleeve 2. Close 3. Open